Set timer for 12 min. Start the online timer set for 12 minutes. You can also add or subtract time. Sound alarm notification is optional.
How to use this 12 minutes timer
Simply press start and the timer will tell you when your time has run out. It will keep counting upward instead.
Sound notification (alarm) is optional. You can keep the timer running in the background if you for example open a new tab. If you have sound notification the timer will tell you when time is up.